| Acknowledgments (2009) | |||||||||||||||
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| First of all I want to thank my advisor, Stefan Felsner. In lectures and many discussions I learned a lot from him not only about graph theory and combinatorics. He was also willing to share the large and little tricks and insights that make (scientific) working so much easier. During lunches and many coffee breaks I also learned a lot from Stefan about life, the universe, and everything [3] and I appreciate these insights as much as the mathematical ones. Günter M. Ziegler has worked with me on the chapter about integer realizations of stacked polytopes and I have enjoyed learning math from him. I am also very grateful for the financial support, ranging from paying for dessert in Victoria, Canada to offering me a Günter M. Ziegler DFG Leibniz grant for more than a year. I thank Paul Bonsma for introducing me to the subject of leafy trees and for inspiring joint work on the subject. I am grateful to Bruno Benedetti, Nicolas Bonichon, Páidí Creed, Eric Fusy, Bernd Gärtner, Michael Hoffmann, Mark Jerrum, Christian Krattenthaler, and Raman Sanyal for valuable hints and discussions related to this thesis. I particularly thank Graham Brightwell for agreeing to referee this thesis. I am | |||||||||||||||
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